1. Fundamentals of Boundary Value Problems for Ordinary Differential Equations;Vasil'ev,1978
2. Numerical Solution of Convection–Diffusion Problems;Morton,1995
3. Fitted Numerical Methods for Singular Perturbation Problems;Miller,1996
4. Numerical Methods for Singularly Perturbed Differential Equations;Roos,1996
5. Layer-adapted grids for singular perturbation problems;Roos;ZAMM,1998